BetTrader was the first Betfair API application to introduce the ladder interface.
Advanced Cymatic Trader is a Betfair trading application.
Low cost automated betting and trading software.
Geeks Toy is trading software for Betfair, BETDAQ and Matchbook.
Bet Angel is a trading application that was created in 2004 by Betfair trader Peter Webb.
Although automated betting predates betting exchanges, this betting style has proliferated since the advent of betting exchange APIs.
A betting exchange API enables exchange customers or third party developers to create custom applications that automate betting activity. The API enables users to read live market data, place bets and check their account statement without having to use the betting exchange web site.
Bookmaking, like dutching, uses bets placed simultaneously on multiple selections to eliminate the unlikely outcomes and divide the locked in profit between the remaining selections. Unlike dutching, however where you are backing your selections, with bookmaking you lay the selections.